21361928

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1181}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 51062400

約数和(自身を除く): 29700472

約数列:

[1, 2, 4, 7, 8, 14, 17, 19, 28, 34, 38, 56, 68, 76, 119, 133, 136, 152, 238, 266, 323, 476, 532, 646, 952, 1064, 1181, 1292, 2261, 2362, 2584, 4522, 4724, 8267, 9044, 9448, 16534, 18088, 20077, 22439, 33068, 40154, 44878, 66136, 80308, 89756, 140539, 157073, 160616, 179512, 281078, 314146, 381463, 562156, 628292, 762926, 1124312, 1256584, 1525852, 2670241, 3051704, 5340482, 10680964, 21361928]

約数ペア:

[(1, 21361928), (2, 10680964), (4, 5340482), (7, 3051704), (8, 2670241), (14, 1525852), (17, 1256584), (19, 1124312), (28, 762926), (34, 628292), (38, 562156), (56, 381463), (68, 314146), (76, 281078), (119, 179512), (133, 160616), (136, 157073), (152, 140539), (238, 89756), (266, 80308), (323, 66136), (476, 44878), (532, 40154), (646, 33068), (952, 22439), (1064, 20077), (1181, 18088), (1292, 16534), (2261, 9448), (2362, 9044), (2584, 8267), (4522, 4724)]